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Poster: A/V Geek Skip Date: Aug 12, 2004 12:57pm
Forum: movies Subject: Re: tech specs for uploading video?

I've been uploading MPEG-2 files with the following specs:

720 x 480 (or 704 x 480)
9.8 Mbps VBR (variable bit rate)
Interlaced
192 kbps MPEG Layer 2 audio
29.97 frames per sec (if it's NTSC)

This can make a pretty big file - around 4 GB for one hour's worth of material - but it's high quality.

Personally, I wouldn't go below 5Mbps CBR for MPEG-2 bitrate for 720 x 480.

I wouldn't worry about: Field order, Multiplex pack size,Adaptive noise reduce.

Does that help?

Skip

This post was modified by AV Geek Skip on 2004-08-12 19:57:33

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Poster: Flick Harrison Date: Aug 13, 2004 2:41am
Forum: movies Subject: Re: tech specs for uploading video?

Awesome, that's good info - I believe 9.8mbps is actually the very limit of the dvd spec, so when you add audio it wouldn't work on a dvd player! Then again, you're talking mpeg-2 for computer playback, and if anyone wants to go to dvd or vhs they'd have to do some transferring anyway.

For consumer dvd players, it's safe to stick around 8.2 plus audio for playability on all players - though if it works on yours, and you're just using a scratch disk to watch prelinger movies and then overwrite them next time, that's fine i guess.

Thanks.

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Poster: A/V Geek Skip Date: Aug 13, 2004 2:51am
Forum: movies Subject: Re: tech specs for uploading video?

Oops. Let me clarify.

I don't go above the limit for the DVD spec, so it's 9.8 Mbps total.

Skip

This post was modified by AV Geek Skip on 2004-08-13 09:51:38

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Poster: Flick Harrison Date: Aug 16, 2004 1:32pm
Forum: movies Subject: Re: tech specs for uploading video?

So - having this crazy problem creating mpeg-2 married audio-video. Basically can't be done in quicktime and media-cleaner says 226 hours (a number which goes UP as time goes by, instead of DOWN). I posted about it here and check out the replies:

http://www.uemforums.com/2pop/ubbthreads/showflat.php?Cat=&Board=DVDAuthoringCreation&Number=50771&fpart=&PHPSESSID=

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Poster: A/V Geek Skip Date: Aug 16, 2004 1:43pm
Forum: movies Subject: Re: tech specs for uploading video?

I don't have experience with Cleaner so I can't help you there. I do realtime MPEG-2 captures with hardware.

Regarding those forum responses, I know of some Windows DVD authoring programs (DVDlab, for one) that use muxed MPEG files.

Regarding, MPEG2 being an archival format - it's definitely not. However it is a high quality, widely used format that most folks can watch on their computer or watch on a DVD player. Currently, there's really no other file format that can claim that.

While having a high bitrate file would be nice, a lower bitrate one will do in the meantime - especially if you'd like folks to see your work now.

Good luck,
Skip

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